MUST BUYBy Ryanon 3/21/2013

Ryan would recommend this product to a friend

This little module is perfect. It easily hooks up to my BRS RODI unit and tells me exactly what my TDS is for my water supply coming in and for my RODI water coming out. Easily tells you when its time to change the filters and resin in your RODI unit. A MUST HAVE

Best thing I added to RO systemBy BGon 3/7/2013

BG would recommend this product to a friend

Installation real easy and works great. Should have gotten this when I first started using RO system. Much better than a TDS meter I been using for months.

No brainer!By Caseyon 12/24/2012

Casey would recommend this product to a friend

Simple no brainer here. Great price for peace of mind and knowing exactly when you should be changing filters. Easy to install with t fittings, took less than a minute. Couldn't be happier!!

Works greatBy Shawnon 11/30/2012

Shawn would recommend this product to a friend

Easy install and works great.

Great Little Tool!By Johnon 11/28/2012

John would recommend this product to a friend

An amazing little device!! Its nice to be able to see how much the RO/DI system is actually doing! I had no idea my TDS were so high, and at the end... 0 TDS :) Very simple to hook up. I even moved it to a couple different points in the system to see the difference. I would defiantly recommend this to any reefer!

Great TDS meterBy williamon 11/28/2012

william would recommend this product to a friend

Love the In and Out testing functionality. Extremely easy to install. Minus one star for not being waterproof ( My own stupidity made me lose one). Awesome Product.

NecessityBy jackon 11/28/2012

jack would recommend this product to a friend

Water is the backbone of our systems. Regardless of anything else we do, starting with a KNOWN base, we can adjust what we need. I used t just buy a filter setup about once a year and hoped it was enough. This device shows you exactly when it's time to replace them, and it's easy to use.

AWESOME !By Chrison 11/27/2012

Chris would recommend this product to a friend

GREAT product !! A must have if your gonna buy the RO/DI unit

Added insurance to water quality.By Johnon 10/2/2012

John would recommend this product to a friend

I have had this set up on my RODI for more than a year now and I could not be happier. Color changing resin is fine, but with this monitor I know for sure when my DI resin needs to be changed. I get the most use out of my resin, and can monitor two stages of my RODI system.

great to haveBy Matthewon 9/9/2012

Matthew would recommend this product to a friend

this product is great to have ,it works great and easy to install
i reccomend it to everyone

PerfectBy Dustyon 9/9/2012

Dusty would recommend this product to a friend

Works exactly as described, without any problems. The installation was very simple with just a couple snipes of tubing and using the quick grip connections, it was literally a 10 minute installation. A+ product!

A must have!By Joshuaon 9/3/2012

Joshua would recommend this product to a friend

A TDS meter is a must for any reef keeper. This is a cheap easy to use and setup solution.